https://www.cnbc.com/2018/02/28/amazons-ring-buy-to-allow-couriers-in-your-home-credit-suisse.html >Amazon's acquisition of Ring will have big implications for its in-home delivery offering, according to one Wall Street firm. >The e-commerce giant confirmed Tuesday it is buying smart doorbell maker Ring. Financial details of the acquisition were not disclosed, but Reuters reported it could be worth more than $1 billion.